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3 years ago

F

Mathematics

2 answers:

Masja [62]3 years ago

5 0

Step-by-step explanation:

P varies to d²

F=K/d²

where K is the constant

6=k/6²

6=k/36

K= 216

we write the equation

F=k/d²

we substitute

F=216/3²

F=216/9

F= 24

ivolga24 [154]3 years ago

3 0

Answer:

F = 24

Step-by-step explanation:

Given that F is inversely proportional to d² then the equation relating them is

F= $\frac{k}{d^2}$ ← k is the constant of proportion

To find k use the condition F = 6 when d = 6 , then

6 = $\frac{k}{6^2}$ = $\frac{k}{36}$ ( multiply both sides by 36 )

216 = k

F = $\frac{216}{d^2}$ ← equation of proportion

When d = 3 , then

F = $\frac{216}{3^2}$ = $\frac{216}{9}$ = 24

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Answer:

1/4

Explanation:

Hola. Puesto que tu pregunta está en español, te responderé en el mismo lenguage.

Estas son las posibilidades dadas por la combinación moneda/dado

Número de combinaciones

Moneda: prenda

Cara: vestido 1 de 2: 1/2

Sello: falda 1 de 2: 1/2

Dado: color

Par: negro 3 de 6: 3/6

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En total son 2 × 6 resultados: 12 (incluye resultados repetidos, no son todos diferentes entre sí)

¿Cuántas combinaciones tienen vestido y color negro?

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Es decir: moneda = cara y dado = par

Son 1 × 3 = 3.

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Hay otras formas de resolverlo. Por ejemplo;

Como los resultados de lanzar la moneda y el dado son independientes:

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